Finding the Fourth Proportional to 83,854.32, 115,713.78 and 48,036.12
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Solution
The fourth proportional to 83,854.32, 115,713.78 and 48,036.12 is: 66,286.88
Step by Step Solution
- Step 1: Write the proportion equation
83,854.32 : 115,713.78 = 48,036.12 : x - Step 2: Convert to fraction form
83,854.32/115,713.78 = 48,036.12/x - Step 3: Cross multiply
83,854.32x = 115,713.78 × 48,036.12 - Step 4: Simplify right side
83,854.32x = 5,558,441,021.73 - Step 5: Solve for x
x = 5,558,441,021.73/83,854.32 - Step 6: Final answer
x = 66,286.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.